Polk Audio 5.25" MW5530 - WOOFER SPEAKER DRIVER - mint, 8 avail.

For Sale:  Listing is for ONE driver, should have around 8 available all in the same condition.

All are mint condition, tested and working. Rubber surrounds. Cones have no rips, tears, holes, or voice coil rub. You can have the nice carpeted mini cabinets too, or if you want to save on ship cost can send the bare driver.  Previous owner either made or bought these little square cabs, mounted them back to back to make four "direct reflecting" speakers. They all have acoustic insulation and a bass port in the back, the one I took apart has a removably foam plug in the port and assume they all do.

Specifications
 

• Size / Type = 5.250" Dynamic Balance® polymer cone woofer
• SPL = 91 db @ 1w/1m
• Wattage = 110 Watts RMS / 220 Watts Peak
• Polymer cone woofer, rubber surround
• Response = 45 Hz. to 10 kHz.
• Weight = Right a 3 pound ea.
• Magnet = Un-Shielded 16 oz.
• VC = 1" ( 25 mm)
• Ohms = 4 ohms

TS Measurements

• f(s) - 69 Hz.
• Q(ms) - 9.521
• V(as) - 7.56 liters ( 0.267 cf. )
• n(0) - 0.37%
• M(ms) - 10.11 grams
• R(e) - 3.69 Ohms
• Q(es) - 0.666
• SPL - 91 dB @ 1W/1m
• C(ms) - 0.51 mm/N
• Z(max) - 56.44 Ohms
• Q(ts) - 0.622
• L(e) - 0.36 mH
• BL - 4.96

Polk Audio's MW5530 fits into a 4.875" mounting hole.
It has a mounting depth of 3.375"
The mounting face is 5.250" in dia. with four .140" mounting screws.
Mounting screws are spaced at 3.875" on center to center ( 4 holes at 90" spacing ), or 5.5" on the diagonal.

Additional higher resolution photos available on request.

Send your zip code and city for a ship quote- should be between $6.99 and $12.99 if you are in the continental USA. (Jan. 2023).